Carpet-picking machine.



Ic. A. GONNAN.

Patented June 12, 1917.

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1 lig -53 Hg. v 48 48 A' A c. A. conm/mx CARPET PICKING MACHINE. APPLICATiON FILED APR.25, 1914.

Patented J une 12, 1917.

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me nomas Puras co.. womumm wAsmncmN. n cA ITI MIAT@ FTI @FFIQE CHARLES A. CONNAN, OF PORTLAND, OREGON. 'gj

CARPET-PICKING MACHINE.

Application filed April 25, 1914.

To all 107mm t may concern Be it known that I, CHAI-ums A. CONNAN, a citizen of the United States, residing in the city of Portland, county of lifultnomah, and State of Oregon, have invented certain new and useful Improvements in Carpet-Picking Machines, of which the following is a specification.

My invention relates to carpet picking machines of the character adapted for picking the nap from the edges of strips of carpet which are to be sewn together, whereby to avoid any increased thickness at the seam. Among the salient objects of my invention are,--

To provide in a machine of the character referred to a construction wherein there is an intermittent uniform mechanical feed of the carpet through the machine, and wherein the carpet is at the same time firmly held about the place being picked; to provide in such a machine a construction wherein the working plate and the feed member operate in the same plane, and wherein the working l its lower end through an outlet 6, into a bag plate is intermittently raised and lowered, the feed movement of the carpet taking place during the moment the working plate is lowered; to provide in such a machine an improved mechanism wherein there is a more rapid and therefore a more effective action' of the picking devices; to provide in a machine of the character referred to means for drawing off and confining the nap and lint as it is picked and released, thereby preventing its escape into the atmosphere; to provide in a machine of the character referred to means for simultaneously trimming the edge of the carpet as it passes through the machine; and in general, to provide a durable and comparatively inexpensive machine of simple construction and operation.

In order that others may understand my invention, I have shown in the accompanying two sheets of drawings one practical embodiment thereof, which I will now describe.

Figure 1 is a longitudinal sectional view taken on line 1 1 of Fig. 2;

Fig. 2 is a cross sectional view thereof taken on line 2 2 of Fig. l;

Fig. 3 is a fragmentary side view showing the front portion of the machine;

Fig. l is a similar view showing the opposite side thereof;

Fig. 5 is an enlarged detail view showing` a' v trimming knife. lever; f.

Specification of Letters Patent.

Patented J une 12, 1917.

Serial No. 834,345.

Fig. 6 is a cross sectional view through the trimming knife;

Fig. 7 is an enlarged view showing the nap picking devices;

Fig. S is an inner face view of one of the picking jaws;

Fig. 9 is a plan view of a. working plate over which the carpet passes;

Fig. 10 is a plan view of a feed dog which works in an opening through the work plate shown in Fig. 9; and

Fig. 11 is a plan view of a pressure foot or plate for holding the carpet about the place being picked.

Referring to the drawings, l designates a' table top or support with an opening therethrough, over which the machine is conveniently placed. The body A of the machine is preferably cast in two or more pieces which can be conveniently bolted together, as at 3-3. Hthin the body of the machine is provided a fan chamber 4, communicating through a passageway 5 with the working portion of the machine, and discharging at 7 supported thereupon, as by means of hooks 8. Constituting a part of the body of the machine is a base or bed plate A, by means of which the machine is supported upon the table top 1. Said bed plate A is provided with a suitable opening, as A2, in which is mounted certain operating mechanism, hereinafter again referred to.

Rotatably mounted in the body A is a main shaft 9, having fiXedly mounted thereon a worm 10, a cam member 1l, and pulleys 12 and 13. Also mounted in said body or housing A is a fan shaft 14, provided with fan blades 15, which may be of any desired number, said fan shaft being driven through a pulley 16, mounted thereonand driven by means of a belt 17 from the pulley 12 above. Secured to the cam member 11 on the shaft 9, is a crank pin 1S, upon which is pivotally mounted a pitman 19, which connects at its lower end with a stud 20, which fits with certain play through the end of the pitman, as shown, and on which it is held in place by means of a slotted washer 21 and screw 22. Said stud 20 projects laterally from a lever 23, and also has mounted thereon picker levers 24 and 25, to which are detaehably secured picker jaws, as 26 and 27, as indicated in Fig. 7. The picker jaw 26, it will be noted, Fig. 7, is longer than the picker jaw the upper ends, and are intermittently closed by the action of a spring 46, hereinafter again referred to, which normally operates to draw said picker levers yieldinglyr together at their upper ends, thus opening the picker jaws 26 and 27. i

Also mounted in the body A, at right angles to the shaft 9, is a shaft 2.8, provided with a worm gear 29 and a `cam member 30, having an inner cam face, as 30. Rigidly mounted upon the inside of the bed plate A', Fig. 2, is a bracket 31, to which is pivotally connected a ywork plate 32, shown in plan view in Fig. 9, and across which the carpet C is fed. The opposite end of said working plate 32 is supported by the lower end of a lever 33, pivotally connected to the 'body A, as at 34, Fig. 4. Said lever 33 is rocked on its pivot 34, by the engagement at its upper end with the cam member 30, said 'lever being provided with a cam roller, as 35. Thus the working plate 32 is intermittently raised and lowered, being normally held down by means of a spring 32.

Pivotally and movably yconnected to the bracket 31, by means of a link 36, isa feed lever or member' 37, Carrying a feed dog A38, shown in plan view kin Fig. l0, and adapted to lit up through the opening in the work plate 29, as indicated, said feed dog having its side portions notched or provided with teeth, as indicated, in order to facilitate the feeding of the carpet C across the work plate 29. The opposite end of said feed lever 37 is supported and oscillated by means Vof a lever 39, pivotally mounted, as at 40, and actuated by the cam face 30, -engaging a cam roller 41, mounted upon the upper end of said lever. Said lever is normally held in engagement with said cam face Aby means of a spring, as 42. 'Thus as the lever 39 is moved by the cam face 30', the feed lever or support 37, and the feed dog carried thereby, are moved or oscillated across the 'opening in the work plate 32, at a timev when said work plate is lowered. Thus the carpet C is engaged `by the feed dog 38 and moved intermittently and uniformly across said work Y plate.

As' a means for regulating the downward stroke of the picking jaws 26 and 27, and their levers 24 and 25, a cam disk, as 43, is mounted on the side -of the body or housing A, the cam face of which is adapted to act' as a. graduated stop for the upturned end of the lever 23, as clearly illustrated in Fig. 2,

said lever 23 being attached at its opposite y the picking jaw lever 24, as a jointed extension thereof, is a compensating lever 24, forming with the lever 24 a yielding operating connection between the aw member 26 and the cam member 11, for operating the jaw member 26, said compensating lever 24V being normally held in substantial alinement with the lever 24, by means of a springy rod 44, suitably anchored at its lower end on the lever 24, and extending through a lug, as

24a, oni the upper end of said lever 24, and

bearing against the upper end of the compensating lever 24, as at 45. Thus the picking jaws operate with a ,certain yielding gripping action upon the nap, so that no matter whether little or much of the nap is gripped, it will be firmly held, depending upon the tension of the spring 44. The picking jaw lever 25 is connected to the upper end of the lever 24 by means of a coiled spring, as 46,'whereby both of said picking jaw levers are held at all times yieldingly against the cam member 11, and are moved apart at their upper ends by the action of said cam member, which causes the picking jaws 26 and 27 to be moved together during their downward stroke in order to pick the nap from the carpet C, at a point immediately over the middle of vthe feed dog 38. Y i

Pivotally secured .to the body or housing A, is a rocker lever 47, carrying at its lower vend, hingedly secured thereto, a pressure foot 48, Figs. 1, 2 and 11, adapted to be held down upon the 'carpet C under a yielding pressure by means of a rod 49, connected'to the upper end of the lever 47, extendingthrough the side of the body A, and provided with an adjustable nut or button, 50. A coiled spring 5l on said rod 49 extends from said button 50 into the housing A .and bears against the opposite inside wall thereof, as shown, whereby the pressure on said foot 48 vcan be regulated by adjusting said nut 50. Said pressure foot' 48 has a suitable opening therethrough, through which the picking jaws grip the nap of the carpet C.

f The feed member 37 can be adjusted vertically by means ofv a little screw 37 accessible through a hole in the work plate immediately above it, as shown.

I have also provided means for trimming the edge of the carpet as it is fed through the machine. Thisl accomplish by means of a knife 52, mounted upon the end of the lever 23 and projecting' downwardly through shear cutting edge, as shown in Figs. 5 and (i, and is adapted to trim the edge of the car pet as it passes along under the pressure foot during the picking operation.

The operation of the machine may be briefly described as follows:

The operator presses inwardly on the but' ton or nut 50, which operates through the rod 49 and the lever 47 to raise the pressure foot 11S, so that the carpet can be placed thereunder upon the work plate 29. The adjusting disk 43 is turned to the desired position in order to regulate the downward movement of the picking devices, depending on what kind of carpet is to be picked. To this end said disk 43, as shown in Fig. 3, is provided with indications for use with different kinds of carpet. This makes the machine very quickly adjusted for any kind of carpet. The operation of the main shaft 9, through pulley 13, driven from any desired source of power, causes the fan shaft 111 to be operated at a high speed and creates a strong suction through the passageway 5 from the working table, to draw off the nap as it is released and discharges it through the outlet 6 into the bag 7. At each revolution of the shaft 9, the picking devices 2(3 27 are moved down to the carpet C and closed upon the nap. By reason of the compensating lever, there is provided through the spring rod 114, a yielding pressure of theA gripping jaws 2G and 27, so that whether the first movement of the jaws gets much or little nap therebetween, it is firmly held, and they will pick a very small amount, as readily as more nap each time they descend to the carpet, and as they are raised they release the nap under the operation of the double cam 11 which permits their levers 2li and 25 to be moved toward each other under the action of the spring 4G. The nap as released is drawn out by the fan, as described. The gear 29 revolves once to eight revolutions of the shaft 9. This causes the picking devices to descend and grip the nap eight times in practically one place, and be tween each intermittent feed movement of the carpet across the work plate 32, thus insui-ing the removal of all of the nap from the carpet as it is advanced across the work plate. Cam 30 releases the lever 33 and permits the work plate to be lowered, at which time, also, the inner face 30 of said cam moves lever 39 to force the feed member 37 and feed dog 88 forwardly, the latter engaging the carpet and moving it there with. At the same time the trimming knife 52 cuts the edge of the carpet as it advances. After four revolutions of the shaft 9, cam 30 voperates to raise the work plate 32 su'lliciently to permit the feed member 37 and feed dog 38 to be returned to their normal position by the spring 37a, the lever 39 hav` ing been released by said cam. It will be noted that the feed lever 37 and feed dog 38 .do not move up or down, but are reciprocated in their respective planes.

Thus I have provided a machine with which the nap from a carpet can be quickly and effectively removed and taken care of in a sanitary manner, the carpet edge `cut straight, and a machine adapted to be quickly adjusted for use with any kind of carpet from which there is nap or the like to be removed.

I am aware that changes can be made without departing from the invention as here illustrated, and I do not, therefore, limit the invention to this specific embodiment, except as I may be limited by the hereto appended claims.

I claim:

1. In a carpet picking machine, two picking levers pivotally mounted together adj a cent their ends upon the same axis and provided at their pivoted ends with two picking jaws, means for oscillating said levers longitudinally, and rotating means operating between the opposite ends of said levers to intermittently move said jaws together into biting engagement with each other.

2. In a carpet picking machine, two picking levers pivotally mounted together adj acent their ends upon a common pivotal support and provided at their pivoted ends with two picking aws, means for oscillating said pivotal support and said picking levers to and from the work, and a continuously rotating element operating by direct engagement with the upper ends of said picking levers to intermittently move said jaws together into biting engagement with each other.

3. In a carpet picking machine, the combination with picking levers and picking jaws and means for oscillating and operating the same, of means for regulating the oscillating stroke of said picking levers comprising a cam disk of various thicknesses adapted to be adjusted to different stop` positions, substantially as described.

4:. In a carpet picking machine7 two picking jaws with means for oscillating and operating the same, and means projecting beyond the contacting surfaces of said jaws and adapted to engage the body of the carpet, whereby to operate as a stop to prevent the jaws from biting the body of the carpet.

5. In a carpet picking machine, two picking jaws with means for oscillating and operating the same in the picking operation, one of said jaws projecting beyond the other whereby the latter bites against the side of the former, and the former acts as a stop to prevent any biting of the body of the carpet.

6. In a carpet picking machine, in combination, a work plate adapted to receive the carpet thereupon, feed devices in the same plane of said work plate, means for intermittently loweringesaid work plate,

means for intermittently actuating said feed devices, as said work plate is lowered, and picking devices with means for operating them, substantially as described..

' 7 In a device of the character referred to, a work plate to receive the carpet and movably mounted, feed devices normally occupying the same pla-ne with said workrplate, means for lowering said work plate ntermittently, and means for actuatinglsaidrfeed devices simultaneously with the downward movement of said work plate, substantially as described. n n

8. In a carpet picking machine,in combination, picking devices having spaced levers for actuating them, a cam member working between said levers and adapted to intermittently move them apart, and means for returning them, substantially as described.

9. In a carpet picking machine, in combination'therewith, two pickingy jaws adapted to be moved intermittently into gripping engagement with each other, a cam member for moving the same, and means interposed between said liaws and said cam member to cause a yielding engagement therebetween.

10. In a carpet picking machine, a workV late for the carpet tomove upon, a pressure oot with means for holding it down upon said carpet, feed devices working through said work plate and means for Vactuating the same, means for lowering said work plate intermittently to permit the engagement' of said feed devices with the carpet, and picking devices with means for actuating the same as said carpet is fed across said work plate.

11. In acarpet picking machine, in combination, picking devices adapted to pick the VCopies of this patent may be obtained for nap from/a carpet with means for actuating the same, feed mechanism nfor intermittently feeding said carpet through said machine,

means for causing a plurality of pickingV movements to each intermittent movement of the feed mechanism, and means for holding the carpet during the picking operations.

12. In a carpet picking machine, in combination, a work plate adapted to be intermittently raised and lowered, a pressure foot held yieldingly upon said work plate, a feed dog working through said work plate and flush with its upper surface when said work plate is in its raised position, means for intermittently actuating Vsaid feed dog, means for intermittently lowering said work plate simultaneously with the movement of said feed dog, and picking devices with means for operating the same lthrough said Vpressure foot, substantially as described.

13. In a carpet picking machine, in combination, a work plate movably mounted, and adaptedto receive the carpet thereupon, feed devices working through said work plate and having means for actuating them, a pressure foot mounted to bear Vupon said In presenceof-4 Y R. B. FRENCH,

M. M. GILBERT.

Washington, D. C. 

